Finding the Fourth Proportional to 1,378,207.84, 2,067,311.76 and 431,652.64
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Solution
The fourth proportional to 1,378,207.84, 2,067,311.76 and 431,652.64 is: 647,478.96
Step by Step Solution
- Step 1: Write the proportion equation
1,378,207.84 : 2,067,311.76 = 431,652.64 : x - Step 2: Convert to fraction form
1,378,207.84/2,067,311.76 = 431,652.64/x - Step 3: Cross multiply
1,378,207.84x = 2,067,311.76 × 431,652.64 - Step 4: Simplify right side
1,378,207.84x = 892,360,578,907.05 - Step 5: Solve for x
x = 892,360,578,907.05/1,378,207.84 - Step 6: Final answer
x = 647,478.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.